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os: Chtimes doesn't work on directory on Windows #8090

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gopherbot opened this Issue May 24, 2014 · 5 comments

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commented May 24, 2014

by victorvu2001:

What does 'go version' print?
go version go1.2.2 windows/amd64

Calling os.Chtimes() with a directory as an argument fails on Windows (Win8.1 64bit)
with a "Access is denied." error. This happens even if the directory exists
and all write permissions are properly set.
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commented May 24, 2014

Comment 1 by victorvu2001:

Update.
I did some digging, and the root cause seems to be in the CreateFile() call in
UtimesNano() (pkg/syscall/syscall_windows.go), specifically its use of
FILE_ATTRIBUTE_NORMAL for the dwFlagsAndAttributes parameter.
The docs for CreateFile [1] say that FILE_FLAG_BACKUP_SEMANTICS must be set to obtain a
handle to a directory. It also says that opening an existing file "ignores any file
attributes" specified, so FILE_ATTRIBUTE_NORMAL is useless.
Possible fix? https://gist.github.com/vqvu/d8332f7ce87e13879e5d
[1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa363858%28v=vs.85%29.aspx
@ianlancetaylor

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commented May 24, 2014

Comment 2:

Labels changed: added repo-main, release-go1.4, os-windows.

@alexbrainman

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commented Jun 2, 2014

Comment 3:

Sounds like a plan. Here http://golang.org/doc/contribute.html is how to contribute, if
you like. Also, please, add new test that is broken now, but will be fixed once your
change is applied. Thank you.
Alex

Status changed to Accepted.

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commented Oct 6, 2014

Comment 4:

CL https://golang.org/cl/154020043 mentions this issue.
@rsc

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commented Oct 6, 2014

Comment 5:

This issue was closed by revision ab724f9.

Status changed to Fixed.

@gopherbot gopherbot added fixed labels Oct 6, 2014

@rsc rsc added this to the Go1.4 milestone Apr 14, 2015

@rsc rsc removed the release-go1.4 label Apr 14, 2015

@golang golang locked and limited conversation to collaborators Jun 25, 2016

wheatman added a commit to wheatman/go-akaros that referenced this issue Jun 25, 2018

wheatman added a commit to wheatman/go-akaros that referenced this issue Jun 26, 2018

wheatman added a commit to wheatman/go-akaros that referenced this issue Jul 9, 2018

wheatman added a commit to wheatman/go-akaros that referenced this issue Jul 30, 2018

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